Kopaonik is a major ski resort in Serbia, situated in the heart of Kopaonik National Park. It's the largest mountain range in Serbia, stretching 80 km from northwest to southeast, and offers 25 ski lifts with a capacity of 32,000 skiers per hour. The resort provides a variety of activities, including skiing, snowboarding, and tennis, with 4.5-star reviews praising its abundant slopes, nice maintenance, and amazing snow conditions in December.